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32-0130

Sigma-Aldrich

Fluorescein sodium salt

JIS special grade

Synonym(s):

Acid Yellow 73, D&C;Yellow No. 8, NaFl, NaFluo, Sodium fluorescein, Uranine

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About This Item

Empirical Formula (Hill Notation):
C20H10Na2O5
CAS Number:
518-47-8
Molecular Weight:
376.27
Colour Index Number:
45350
Beilstein:
3833041
MDL number:
MFCD00167039
UNSPSC Code:
41116100
PubChem Substance ID:
329753957

grade

JIS special grade

form

powder

availability

available only in Japan

pH

~8.3 (20 °C, 10 g/L)

fluorescence

λex 460 nm; λem 515 nm(lit.)

storage temp.

15-25°C

SMILES string

[Na+].[Na+].[O-]c1ccc2c(Oc3cc([O-])ccc3C24OC(=O)c5ccccc45)c1

InChI

1S/C20H12O5.2Na/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20;;/h1-10,21-22H;;/q;2*+1/p-2

InChI key

RGPLGPBQJOQFJS-UHFFFAOYSA-L

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Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

423.7 °F - Pensky-Martens closed cup

Flash Point(C)

217.6 °C - Pensky-Martens closed cup

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